ASAP!!! Estimate the area of the circle and use 22/7 for pie. The circle shows line all the way across measuring 28cm. Find area
2 answers:
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The time it takes between when the rock was dropped and when it landed is 1.33 seconds.
<h3>What is the time it takes for the rock to land?</h3>The time it takes the rock to land on the ground from where it is dropped can be determined by using the function given.
The height of the function when it hits the ground will be zero, so the function can be written as:
64 = 36t²
t² =1.778
t = 1.333 seconds
Learn more about calculating the time of a function here:
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Answer:
85.6 cm^2
Step-by-step explanation:
The area of the central triangle bounded by each of the sides can be computed as ...
A = (1/2)r²sin(α) . . . . where α is the central angle, 360°/5 = 72°
There are 5 such triangles, so the area of the pentagon is ...
A = (5/2)(6 cm)²sin(72°) ≈ 85.595 cm²
The area of the regular pentagon of radius 6 cm is about 85.6 cm².
